Differences between TBM and Drilling and Blasting Methods Applied to the Underground Drainage System of Pumped Storage Power Stations
In response to the continuous promotion and application of small cross-section TBM in the underground drainage system of pumped storage power stations in recent years,the differences between TBM and drilling and blasting methods in the construction of underground tunnels were analyzed from two dimensions of construction technical conditions and construction costs.The results showed that the layouts of the construction sites for the two methods were basically the same.At present,except for the slight shortcomings of TBM compared with traditional drilling and blasting methods in terms of cost,TBM was not only safe,but also had absolute advantage in terms of quality and progress.It is believed that with the further development and large-scale application of TBM manufacturing technology,the economic difference between TBM and traditional drilling and blasting method will gradually narrow.The TBM may become the mainstream construction method of underground drainage system of pumped storage power stations in the future.
construction technologyTBM methoddrilling and blasting methodconstruction cost
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